Problems · by component

2006 Mercury Mountaineer power train problems

39 owner complaints to NHTSA about the 2006 Mercury Mountaineer cite power train, 33% of all 117 complaints for this model year.

Complaints
39
33% of all complaints
Crashes
2
Reported by owners
Fires
2
Reported by owners
Injuries
1
Reported by owners
01 —Owner reports

What owners say about the power train

Verbatim from NHTSA complaints, newest first
“MY CAR WILL JERK AS I'M DRIVING RPMS GOING HIGH WHILE NO SPEED IS PICKING UP. WITH JUMP OUT OF GEAR WHEN AT STOP LIGHT. LOUD GRINDING NOISE FROM TIRES COULD HAVE FOOT ALL THE WAY DOWN ON GAS PETAL AND GO NO FASTER.”
Owner complaint to NHTSAFiled Apr 22, 2021Power train, Vehicle speed control, WheelsODI 11413469
“THE GEAR SHAFT WILL STOP MY CAR FROM STARTING WHEN I TURN IT OFF. IT WILL ALSO MAKE MY CAR VUT OFF WHILE DRIVING..THE BUTTON ON THE GEAR STICK WILL GET STUCK AND I AM ABLE TO SHIFT GEARS...WHEN THE CAR IS NOT STARTED AND MY FOOT IS NOT ON THE BREAKS. EVEN WHEN THE BUTTON IS NOT STUCK, IT STILL WILL GET STUCK IN PARK AND WONT LET ME START MY CAR..A RECALL SHOULD BE STARTED..BECAUSE I HAVE SEEN OTHERS ON HERE WITH SIMILAR COMPLAINTS..SO ITS A MANUFACTURING ACCIDENT NOT THE CONSUMER.”
Owner complaint to NHTSAFiled Apr 8, 2019Power trainODI 11194823
“TL* THE CONTACT OWNS A 2006 MERCURY MOUNTAINEER. WHILE THE VEHICLE WAS STATIONARY, IT WOULD NOT REVERSE WHEN PROMPTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 154,758.”
Owner complaint to NHTSAFiled Jan 17, 2017Power trainODI 10945763
“HAVE SENT A COMPLAINT RECENTLY NO ONE HAS CONTACTED ME I'VE SEEN ON LINE HUNDREDS OF COMPLAINTS DUE TO FAULTY TRANSMISSIONS ON FORD, AND MERCURY MOUNTAINEER ESP 20001- THRU 2012 MODELS AND HAD A 2004 LAST YR. I HAD TO SEND TO JUNKYARD BECAUSE TRANSMISSION WAS BAD AND WOULD ALSO STOP WHILE DRIVING ESP. ON HIGHWAYS AT SPEEDS OVER 55 MPH MANY CLOSE CALLS AND LUCKY I WASNT INJURED OR KILLLED DUE TO TROUBLE WITH TRANSMISSION NOT SHIFTING AND BECOMING UNRESPONSIVE TO WHERE IT HAD TO BE TOWED SEVERAL TIMES WHEN TRANSMISSION BECAME UNRESPONSIVE NOW MY 2006 MOUNTAINEER AWD HAS SIMILAR PROBLEMS AND EVERY ONE I HAVE TRIED TO PURCHASE AS A REPLACEMENT ALSO HAS HAD PROBLEMS WITH THEIR TRANSMISSIONS FAILING SO NEED SOME ADVICE AS TO WHAT CAN BE DONE TO CORRECT THESE ISSUES!.....AS IN PAST I STATED IT FAILS LOSES POWER AND TRANSMISSION FAILS WHILE DRIVING ON HIGHWAY AFTER SLOWING DOWN OR COMING TO STOP AT LIGHTS OR STOP SIGNS IT USUALLY IS UNRESPONSIVE AND CANT GET OUT OF LOW GEAR AND OR COMPLETELY WILL NOT GO THRU GEARS NORMALLY!....HAVE HEARD ONLY 2011 MODELS HAVE BEEN RECALLED RECENTLY NOT FAIR IN MY OPINION THAT NO ONE HAS PAID ATTENTION TO THE EARLIER MODEL FORD EXPLORER…”
Owner complaint to NHTSAFiled May 6, 2016Power trainODI 10863544
“2ND MOUNTAINEER OWNED TRANSMISSION WILL NOT SHIFT IN LOW GEARS AND UNRESPONSIVE. STALLED IN TOWN AND ON HIGHWAY AT HIGH SPEEDS ALMOST CAUSING COLLISIONS SEVERAL TIMES AFTER BECOMING UNRESPONSIVE WHILE DRIVING.”
Owner complaint to NHTSAFiled Apr 30, 2016Power trainODI 10862313
“WHEN AT CRUISING SPEED TRANS FEELS LIKE IT IS SURGING AS IF TRYING TO DOWNSHIFT BUT NEVER QUITE DOES, FROM A DEAD STOP TRANS SOMETIMES FEELS LIKE IT CANNOT PULL VEHICLE'S WEIGHT. *TR”
Owner complaint to NHTSAFiled Aug 25, 2014Power trainODI 10628017

Showing 6 of 39 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 10, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 2006 Mountaineer problem areas